An engineering example of wastewater treatment in a fine chemical enterprise
A combined process of hydrolysis de esterification and ozone oxidation is designed for the pretreatment of plasticizer wastewater characterized by high CODcr concentration,high organic nitrogen content and poor biodegradability in a fine chemical enterprise.The main process of"hydrolysis acidification+two-stage expended granular sludge bed(EGSB)+two-stage anoxic-oxic(A/O)+two-stage aerobic biological fluidized tank(ABFT)+coagulation-sedimentation"is used for the treatment of the comprehensive wastewater.The effluent water quality met the Emission standard of pollutants for petroleum chemistry industry(GB31571-2015),and reached the required standard of the sewage treatment plant in the park.
Fine chemical wastewaterOzone oxidationexpended granular sludge bed(EGSB)anoxic-oxic(A/O)Aerobic biological fluidized tank(ABFT)
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维普
